If the three rivers go through the kingdom territory to the lake why not just divert them upstream to farmland to help the drought instead of bothering with lake
@Solaz
Because the asshole trashero is a bloodthirsty tyrant who thinks that the (arguably unnecessary) destruction of an entire indigenous people is "justified" if it's for the "greater good" (his definition of it, that is).
@Solaz
And how you divert rivers? and how much time did it consume? - people want it right here already! @PhoenixStriker5251 haters gonna hate, but the whole story story is just "Home Alone" - bandits(kidnappers in this story) want to robe you(enslave you and transform into brainless goody-two-shoes) and you fight them back!
@Solaz - presumably the mermaids aren't going to take too kindly to their rivers being cut off and would probably retaliate anyway. May as well take the fight to them first and be a bit cleaner with the engagement.
@Kampfarsch We've only seen all his companions together in the first chapter (and various little flashbacks) and they've all been on land.
She's a mermaid, so maybe she couldn't be there without a giant fish tank? Doesn't seem practical when adventuring so maybe she was only a part of the group when they where exploring the underwater mermaid kingdom or something.
Another possibility is maybe she died before making it to the demon lord (like Lanuvel did). All I know is things will probably be explained in the coming chapters and this is all just bored speculation.